--- product_id: 344045927 title: "4 in 1 Antifreeze Refractometer ℉ Coolant Tester" brand: "hallocool" price: "₩47368" currency: KRW in_stock: true reviews_count: 8 category: "Hallocool" url: https://www.desertcart.kr/products/344045927-4-in-1-antifreeze-refractometer-coolant-tester store_origin: KR region: South Korea --- # Battery acid specific gravity 1.10-1.40 Kg/L Freeze point range -60℉ to 32℉ 4-in-1 multi-fluid testing capability 4 in 1 Antifreeze Refractometer ℉ Coolant Tester **Brand:** hallocool **Price:** ₩47368 **Availability:** ✅ In Stock ## Summary > ❄️ Stay Cool, Stay Ahead: The Ultimate 4-in-1 Antifreeze Tester for the Smart Driver ## Quick Answers - **What is this?** 4 in 1 Antifreeze Refractometer ℉ Coolant Tester by hallocool - **How much does it cost?** ₩47368 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/344045927-4-in-1-antifreeze-refractometer-coolant-tester) ## Best For - hallocool enthusiasts ## Why This Product - Trusted hallocool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Fluid Tester:** Test antifreeze, battery acid, windshield washer fluid, and diesel exhaust fluid with one sleek device—streamline your vehicle maintenance routine. - • **Durable & Portable Design:** Crafted from aluminum and ABS rubber with a protective case—built to last and easy to carry for on-the-go professionals. - • **Instant Fahrenheit Readout:** No more confusing conversions—results display directly in Fahrenheit for quick, confident decisions. - • **Precision Freeze Point Detection:** Accurately measures antifreeze freeze protection from -60℉ to 32℉, ensuring your engine stays safe in any winter storm. - • **Automatic Temperature Compensation (ATC):** Get reliable, temperature-adjusted readings every time, eliminating guesswork and saving you time. ## Overview This 4-in-1 antifreeze refractometer offers precise freeze point measurement from -60℉ to 32℉, battery acid specific gravity testing, windshield washer fluid analysis, and diesel exhaust fluid concentration checks. Featuring an easy-to-read Fahrenheit display and automatic temperature compensation, it delivers fast, accurate results with minimal sample size. Built with durable materials and a portable case, it’s the essential tool for proactive vehicle maintenance and winter readiness. ## Description Antifreeze Refractometer in Fahrenheit 4 in 1 Antifreeze Coolant Tester | Ethylene Propylene Glycol Refractometer for Antifreeze Coolant System, Diesel Exhaust Fluid, Battery Acid, Windshield Washer: desertcart.com: Industrial & Scientific Review: Nice having a definitive answer to the freeze point of coolant - I had the old Prestone squeeze bulb device that seems to have served me well for the last 30 or 35 years. However, on my last coolant exchange on on3 of my vehicles, it was telling me the freeze protection was only down to 20 below....even though I had mixed the concentrated antifreeze with 50% distilled water...which should protect down to about 34 below. I checked, double checked, and checked a couple of my other vehicles and it again said about 20 below. I started looking for other options, and this product popped up. Reviews looked good, and there are several others available through other companies,....but most read in Celsius, and this one reads in Fahrenheit....which is what I'm familiar with. It works great and showed me I was protected down to 34 below....which seems right given my 50/50 mix. Easy enough to use, but you do have to wipe it down when done. Comes with a nice padded case to store it in. I'm very happy! Review: Far superior to the old balls in a tube type with squeeze bulb - Slick and accurate tester. Good purchase. ## Features - 4-in-1 Tester - Measuring Freezing of automoblie antifreeze based on ethylene glycol or propylene glycol -60℉ to 32℉. Measuring Specific Gravity of battery acid 1.10 to 1.40Kg/L. Measuring of Windshield Washer Fluid based on ethanol or isopropyl alcohol -40℉ to 32℉. Measuring Urea Concentration in automobile diesel exhauset fluid (DEF) 30% to 35% - Display In Fahrenheit - Updated antifreeze coolant refractometer in Fahrenheit (℉) display, allow you easy to read measured results by ℉ unit, no need to units conversion and save your time - ATC Function - Coolant refractometer Fahrenheit can automatically compensate temperature when ambient temperature changes, eliminate the deviation, you can get the accurate results fast and easier - Easy To Use - Only need 2 or 3 drops of solution and wait for few seconds, then you get the accurate results. These antifreeze tester needs less sample solution than tradistional hydrometer and less expensive then digital refractometer - Durable And Portable - Antifreeze coolant tester is made of aluminum and ABS rubber, non-staining, anti-rust and stury for long perfermance. Comes with durable plastic box, portable and easy to take with you ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 244 Reviews | ## Images ![4 in 1 Antifreeze Refractometer ℉ Coolant Tester - Image 1](https://m.media-amazon.com/images/I/61xdkkJ+aEL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice having a definitive answer to the freeze point of coolant *by J***R on June 8, 2024* I had the old Prestone squeeze bulb device that seems to have served me well for the last 30 or 35 years. However, on my last coolant exchange on on3 of my vehicles, it was telling me the freeze protection was only down to 20 below....even though I had mixed the concentrated antifreeze with 50% distilled water...which should protect down to about 34 below. I checked, double checked, and checked a couple of my other vehicles and it again said about 20 below. I started looking for other options, and this product popped up. Reviews looked good, and there are several others available through other companies,....but most read in Celsius, and this one reads in Fahrenheit....which is what I'm familiar with. It works great and showed me I was protected down to 34 below....which seems right given my 50/50 mix. Easy enough to use, but you do have to wipe it down when done. Comes with a nice padded case to store it in. I'm very happy! ### ⭐⭐⭐⭐⭐ Far superior to the old balls in a tube type with squeeze bulb *by M***N on August 11, 2026* Slick and accurate tester. Good purchase. ### ⭐⭐⭐⭐⭐ Great little gadget! *by J***F on February 4, 2026* This is my first refractometer, so was a little aprehensive about using one at first. There was no need. SUPER easy to use, and this particular one seems great. Comes in a little plastic case with foam lining to keep it safe and secure. Includes a tiny screwdriver for adjusting the calibration. It can be focused to perfect clarity, even if you wear glasses (I myself wear progressive bifocals). One note on that "clarity" piece. If you look through it without any liquid on the glass, you'll probably need to point it at a very bright light to see the measuring scales. Do not fret. As soon as you put a few drops of applicable liquid on the glass and close the little plastic cover over it, the view will be bright and clear in ambient lighting. After getting everything into focus, the first thing to do is calibrate the unit. Place a few drops of distilled water on the glass and close the plastic cover. The water should completely cover the glass, with no gaps. Wipe off any overflow from around the edges. Look through the lens to see the line where the white meets the blue. That should be at 32 F (the freezing point of water). If it is not (mine was about 1 degree off), then you need to calibrate it. Pull the rubber cap off of the adjustment port on the top side of the device. Grab the little screwdriver, slot it into the screw head, and while looking through the lens at the scale, slowly turn the screwdriver one way or the other, until the line is exactly on 32 degrees. It is now calibrated and ready to use. Great little tool that is super easy to use! ## Frequently Bought Together - Antifreeze Refractometer in Fahrenheit 4 in 1 Antifreeze Tester Coolant Refractometer Ethylene Propylene Glycol Refractometer for Antifreeze System Diesel Exhaust Fluid, Battery Acid - ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid - Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 foil wrapped test strips), 1 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/344045927-4-in-1-antifreeze-refractometer-coolant-tester](https://www.desertcart.kr/products/344045927-4-in-1-antifreeze-refractometer-coolant-tester) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-21*